1957 Chevy Dyno Tests Electronic Exhaust Cutouts- Loud Rules!

DYNO RESULTS PROJECT X ’57 CHEVY 210 GMPP ZL1 427-CI QUICK TIME PERFORMANCE EXHAUST CUTOUTS
	Closed		Open
RPM	HP	TQ	HP	TQ	Change
2,500	140	293	145	302	5	9
2,600	148	298	155	313	7	15
2,700	161	311	167	323	6	12
2,800	175	327	178	331	3	4
2,900	189	341	191	345	3	4
3,000	201	351	203	353	2	2
3,100	213	360	213	359	0	-1
3,200	222	364	223	364	1	0
3,300	231	367	233	369	2	2
3,400	244	375	241	370	-3	-5
3,500	252	377	251	375	-1	-2
3,600	260	379	259	377	-1	-2
3,700	269	380	268	379	-1	-1
3,800	279	383	276	380	-3	-3
3,900	287	385	286	385	-1	0
4,000	294	384	294	386	0	2
4,100	302	386	299	382	-3	-4
4,200	305	380	307	382	2	2
4,300	309	377	311	379	2	2
4,400	315	375	318	378	3	3
4,500	321	374	322	375	1	1
4,600	325	370	326	372	1	2
4,700	331	369	333	372	2	3
4,800	336	366	339	370	3	4
4,900	341	365	350	374	9	9
5,000	348	365	360	377	19	12
5,100	359	369	364	375	5	6
5,200	365	368	369	372	4	4
5,300	373	369	373	369	0	0
5,400	374	363	376	365	2	2
5,500	365	348	371	354	6	6
AVE:	279	362	281	365	+2.4	+2.8

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